For awhile now i've been wondering how I could get a smoother idle (like at a stop light in drive). I changed my air n gas filter, cleaned my throtle and IACV, and tried fuel injector cleaners. I changed my PCV valve last week and I've notice a much smoother ride...I dont feel any vibrations when the car is in drive with the heat on.

Just though i'd inform you guys for those who might be in similiar situation.